Corner joint



Patentecl Sept. 29, 1931 UNITED STATES JACOB M. KAUFMAN, or DETROIT MICHIGAN, ASSIG-NOR T AMERICAN SHOW1CASE &

PATENT OFFICE MFG. 00., o1 DETROI'JJ, MIGHIGAN, A CQRIPORAT'ION 01 MICHIGAN.I

(TURNER JOINT' Application filed April 27,

The present invention pertains o0 a novel corner joint of the type employed to permanently 01 te1nporarily join corner meinbers together.

Tl1e primary object of the present inventin is to clevise a corner jo-int capable 0f securing the cornerspf a so-called bargain rim which comprises a frarne to be appliecl upon tables in st01es during sales f01 tl1e purpose of providing a barricade ar ound the edges of the table m0 prevent goods which am pilecl upon the table f1om falling ofi". The ordinary manner of joining such as with dove tail joints or ordinary tenoned W0od bolts 0r dow- ".5 els has not proven successful or satisfactory ancl is not at all pleasing to the eye. The joint must necessarily be capable of withstancling considerable stress as well as pleasing in appearance ancl with this problem in view the present joint has been devised;

Another object ofthe present invention is to clevise a corner joint whicl1 Will connect abutting members, securely tog-etl1er in such a manner tl1at they Will remain secufecl together subject to anything less than actual destructive force yet which 1nay be separated in a manner 0f ehe highest simplicity i f the separation is clesired. The clevice is such tl1at it does n0t in the least detract from the :;u strength of the members being joined and, is 0f pleasing appearance ancl suitable for use in cases whe1e an attra ctive exterior is necessary.

VVith these and other objectsin view my invention is fully set forth ancl more particularly pointed out in the appencled claims reference being had t0 the accompanying drawings, inwhich Figure 1 is a crosS sectional view through a pair of members joinecl in accordance with the present invention;

' Figure 2 is a rear side view of one 0f ehe xnembers forming part of my ihvention;

Figure 3 is a front sicle vieW corresponcling with Figure 2, and

Figure & is a side elevation corresponding with Figures 2 and 1 Like characters are employed to indicate the corresponcling arts throughout.

Tl1e numeral 1 indicates a pair 0f membrs 'tl1e p'resent inventioh the members 1 are with smaller bores 4.

1929. Ser ia1 'INV0. 358,505.

having thein abutting encls lnite'rsd in any s11itable manner as a1; 2, it being ehe purpose of this inventionto tightly secure tl1ese abutting ends of Ehe membets togethe'r. .To accomplish dr ille'clto form bores 3 fo1 th epurpose of rece1vmgmembers p'resently t0 be .described in detatl, -the members l being also provided T116 purpose of thebores 8 is fioccommodate plates 5 Wl11ch are formed from met-al discs 6, stamped to form afa ie7 extending angularly from tl1 e disc '6,"the fac@7fbeing provldecl Wih a perforatign' 8. The angularl T ei;tending face 7 isformed at an angle cf app roz :imately 45 130 the face 0f the disc 6 10'i tl1e 1urpose of j oining members extencling at r'igl1t angles 150 each other='as illustrated and this portion is inserted in the b01e 3 in eaclrof tl1e members 1 so tl1atthe faces 7 l ie parallel to eacl1 othe1 withftlie, rear face'of each disc6 engagingthe out'side face 0f each of the memb'ers 1 around the periphery of the b0res 4 A telscopical screw 9 is provided and is passeclthrough t-he perforations 8 and thlrough tlie b01es 4 and wlientightenecl tl1e screw draws tlie two fa ces 7 together whi'clr in turncatzse the cliscs 6 t0 draw the members 1 togeth e1i VVl1en tl1 e screw- 9 l1as been i;i htaned ihe members l are'tight ly held together in a mannerwhich provides a large beaiing surface btween the discs and the members and thereby considerably increases the'strength of ehe joint ove1 the ordinary' manner 0f joining sh6 e'nds 0f members t0- gether. 113 Will be noted tl1a this manner of supporting the screw 9 permits lt to be insertecl in a mann'er whereby it is-substantial ly at right angles to a line whicl1 bisects the angle at whichthe members 1 are joined ancl is tightened with-out tl1e; heacls'coming direct-ly 'in contact witl1 the me1nbets l.

Although a 'specific embo'dimentof my in- Verition has been illustrited and described lt 1. A device of the character clescribed comprising abutting members arranged at substantially right angles to eaeh other ancl having their meeting ends mitered, sockets formed in saicl abutting members acljacent the ende thereof, plates engaging said meinbers aronncl said Sockets, inclents formedl in said plates ancl receivecl in said sockets in a 1nanner whereby the bottom 0f saicl inclent lies substantially parallel t0 a line biseeting the meeting angle 0f said members, ancl means passing through said members and receivecl in saicl indents for drawing saicl plates towards each other to secure said membe1s together.

2. A device 0f the charaetet described comprising abutting members arrangecl als sub- =stantially right angles t0 each other and having their meeting ends mitered, sockets for1necl in said abuttingmembers adjacent the encls thereef, plates engzigingsaidl 1nembers areundsaid sockets, inclents foimecl in said plates and receiv'ed in saicl soekets in a 1nanner Whezreby the boctom 0f saicl indent lies substzintially parallel to a line bisecting the meetirig angle of saicl 1nembers, ancl a telescopic screw having its opposite ends en gaging opposite indents in a manner to draw saicl plate'stogecher and hold saicl abutting members in'their relative positions. k

3. Tl1e eombination With membgrs arranged at an angle t0 each opher with -their ends abutting, 0f sockets formed in said members adjacent th gabutting encls thereo'f, plates -srrounding *said seckets, inclents for1ne'cl in saicl plates t0 proje'ct into said sockets in a inanner-whereby ehe botto1n of said indent lies substantially parallel to tl1e bisector 0f the ineeting angle 0f saicl 1nembers, an cl means for connecting said indents together in a manner to exert pressure 011 saicl plates on a line at right angles t0 the biseetor of tl1e meeting angle 0f saicl me1nbers.

4. T he combination with 1nembers arranged at an angle 130 eaeh other Wibh tl1eir ends abutting, of sockets fonned in said 1ne1nbers a'cljacent the abutting ende thereof, plates surrouncling said sockets, indencs formecl in saicl plates t0 project into said sockets in a mannerwl1ereby die bottom of saicl indents lies snbstantially parallel 130 ehe bisector 0f th e meeting. angle of said.members, and a telescopic screw. having its opposite encls receivecl in opposite indents in a manner t0 dravv then1 together by exerting pressure 0 n a line substantially ab right angles t0 tl1e biseetor oif tl1e meeting angles o1 sai0l members. v

In testimony whereof I affix my signature.

JACOB M. KAUFMAN. 

